mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-23 02:05:57 +01:00
build-baremetal: enable parallel build and target selection just like build-userland
The factoring out also led to some small bugs being found and solved ;-)
This commit is contained in:
Ciro Santilli 六四事件 法轮功
153
build-baremetal
153
build-baremetal
@@ -2,6 +2,7 @@
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import os
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import common
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import thread_pool
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from shell_helpers import LF
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class Main(common.BuildCliFunction):
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@@ -18,14 +19,20 @@ Build the baremetal examples with crosstool-NG.
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self._add_argument('--ccflags')
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self._add_argument('--force-rebuild')
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self._add_argument('--optimization-level')
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self.add_argument(
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'targets',
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default=[],
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help='Analogous to ./build-userland target selection',
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nargs='*',
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)
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def build(self):
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build_dir = self.get_build_dir()
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bootloader_obj = os.path.join(
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extra_obj_baremetal_bootloader = os.path.join(
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self.env['baremetal_build_lib_dir'],
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'bootloader{}'.format(self.env['obj_ext'])
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)
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common_obj = os.path.join(
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extra_obj_lkmc_common = os.path.join(
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self.env['baremetal_build_lib_dir'],
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self.env['common_basename_noext'] + self.env['obj_ext']
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)
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@@ -38,17 +45,14 @@ Build the baremetal examples with crosstool-NG.
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self.env['baremetal_build_lib_dir'],
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syscalls_basename_noext + self.env['obj_ext']
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)
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common_objs = [common_obj, syscalls_obj]
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cflags = [
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'-I', self.env['baremetal_source_lib_dir'], LF,
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cc_flags = [
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'-I', self.env['root_dir'], LF,
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'-O{}'.format(self.env['optimization_level']), LF,
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'-ggdb3', LF,
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'-mcpu={}'.format(self.env['mcpu']), LF,
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'-nostartfiles', LF,
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]
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if self.env['arch'] == 'arm':
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cflags.extend([
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cc_flags.extend([
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'-mhard-float', LF,
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# This uses the soft float ABI for calling functions from objets in Newlib which
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# our crosstool-NG config compiles with soft floats, while emiting hard float
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@@ -61,7 +65,6 @@ Build the baremetal examples with crosstool-NG.
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'-mfloat-abi=softfp', LF,
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'-mfpu=crypto-neon-fp-armv8', LF,
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])
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cflags_after = ['-lm']
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if self.env['emulator'] == 'gem5':
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if self.env['machine'] == 'VExpress_GEM5_V1':
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entry_address = 0x80000000
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@@ -71,98 +74,80 @@ Build the baremetal examples with crosstool-NG.
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uart_address = 0x10009000
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else:
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raise Exception('unknown machine: ' + self.env['machine'])
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cflags.extend([
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'-D', 'GEM5'.format(uart_address), LF,
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cc_flags.extend([
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'-DLKMC_GEM5=1', LF,
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'-DLKMC_M5OPS_ENABLE=1', LF,
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])
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else:
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entry_address = 0x40000000
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uart_address = 0x09000000
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os.makedirs(build_dir, exist_ok=True)
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os.makedirs(self.env['baremetal_build_lib_dir'], exist_ok=True)
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src = os.path.join(
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cc_flags.extend(['-D', 'LKMC_UART0_ADDR={:#x}'.format(uart_address), LF])
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cc_flags.extend(self.sh.shlex_split(self.env['ccflags']))
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bootloader_src = os.path.join(
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self.env['baremetal_source_lib_dir'],
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'{}{}'.format(
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self.env['arch'],
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self.env['asm_ext']
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)
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)
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cflags.extend(self.sh.shlex_split(self.env['ccflags']))
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if self.need_rebuild([src], bootloader_obj):
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self.sh.run_cmd(
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[self.env['gcc_path'], LF] +
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cflags +
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[
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'-c', LF,
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'-o', bootloader_obj, LF,
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src, LF,
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] +
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cflags_after
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)
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for src, obj in [
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(self.env['common_c'], common_obj),
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for in_path, out_path in [
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(bootloader_src, extra_obj_baremetal_bootloader),
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(self.env['common_c'], extra_obj_lkmc_common),
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(syscalls_src, syscalls_obj),
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]:
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if self.need_rebuild([src, self.env['common_h']], obj):
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self.sh.run_cmd(
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[self.env['gcc_path'], LF] +
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cflags +
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[
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'-D', 'UART0_ADDR={:#x}'.format(uart_address), LF,
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'-c', LF,
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'-o', obj, LF,
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src, LF,
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] +
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cflags_after
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)
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for subpath in [
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'',
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'interactive',
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self.env['baremetal_source_arch_subpath'],
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os.path.join(self.env['baremetal_source_arch_subpath'], 'no_bootloader'),
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]:
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in_dir = os.path.join(self.env['baremetal_source_dir'], subpath)
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if os.path.isdir(in_dir):
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out_dir = os.path.join(self.env['baremetal_build_dir'], subpath)
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os.makedirs(out_dir, exist_ok=True)
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common_objs_bootloader = common_objs.copy()
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if os.path.basename(subpath) != 'no_bootloader':
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common_objs_bootloader.append(bootloader_obj)
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for in_basename in sorted(os.listdir(in_dir)):
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in_path = os.path.join(in_dir, in_basename)
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in_name, in_ext = os.path.splitext(in_basename)
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if (
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os.path.isfile(in_path) and
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in_ext in self.env['build_in_exts']
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):
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out = os.path.join(out_dir, in_name + self.env['baremetal_build_ext'])
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src = os.path.join(self.env['baremetal_source_dir'], in_path)
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if self.need_rebuild(
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common_objs_bootloader +
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[
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src,
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self.env['baremetal_link_script'],
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self.env['common_h']
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],
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out
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):
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self.sh.run_cmd(
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[self.env['gcc_path'], LF] +
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cflags +
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[
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'-Wl,--section-start=.text={:#x}'.format(entry_address), LF,
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'-o', out, LF,
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'-T', self.env['baremetal_link_script'], LF,
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] +
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[
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src, LF,
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] +
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self.sh.add_newlines(common_objs_bootloader) +
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cflags_after
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)
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self._build_one(
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in_path=in_path,
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out_path=out_path,
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cc_flags=cc_flags,
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extra_deps=[self.env['common_h']],
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link=False,
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)
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cc_flags.extend([
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'-Wl,--section-start=.text={:#x}'.format(entry_address), LF,
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'-T', self.env['baremetal_link_script'], LF,
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])
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with thread_pool.ThreadPool(
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self._build_one,
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nthreads=self.env['nproc'],
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) as my_thread_pool:
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try:
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for target in self.env['targets']:
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for path, in_dirnames, in_filenames in self.sh.walk(target):
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for in_filename in in_filenames:
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in_ext = os.path.splitext(in_filename)[1]
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if not in_ext in self.env['build_in_exts']:
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continue
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in_path = os.path.join(path, in_filename)
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error = my_thread_pool.submit({
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'cc_flags': cc_flags,
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'extra_deps': [
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self.env['baremetal_link_script'],
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self.env['common_h']
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],
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'extra_objs': [syscalls_obj],
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'extra_objs_baremetal_bootloader': [extra_obj_baremetal_bootloader],
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'extra_objs_lkmc_common': [extra_obj_lkmc_common],
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'in_path': in_path,
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'out_path': self.resolve_baremetal_executable(in_path),
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})
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if error is not None:
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raise common.ExitLoop()
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except common.ExitLoop:
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pass
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error = my_thread_pool.get_error()
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if error is not None:
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print(error)
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return 1
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def get_build_dir(self):
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return self.env['baremetal_build_dir']
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def setup_one(self):
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self.env['targets'] = self.resolve_targets(
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self.env['baremetal_source_dir'],
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self.env['targets']
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)
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if __name__ == '__main__':
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Main().cli()
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